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dc2548af

DEMO MANUAL DC2548A

Quick start proceDure

Demonstration circuit 2548A is easy to set up to evalu-

ate the performance of the LT8672. Refer to Figure 2 for

proper measurement equipment setup and follow the

procedure below:

4. Turn on the power at the input.

The demo board provides test points TP1 and TP3 to

accurately measure the voltage across the external

MOSFET.

NOTE. If there is no output, temporarily disconnect the

load to make sure that the load is not shorted.

6. Once the proper output voltage is established, adjust

the load within the operating ranges and observe the

output voltage.

7. To use the PG pin, connect a power source at VEXT

that is not higher than 5V.

8. Test point TP5 allows easy access to the voltage at

the AUX pin. The gate-source voltage can be observed

between TP2 and TP4.

Figure 2. Proper Measurement Equipment Setup

DC2548 F02

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LOAD

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POWER

SUPPLY